Systems and methods for refining user equipment location for wireless emergency location-based call routing

Abstract

Systems and methods are provided for refining user equipment (UE) location for wireless emergency location-based call routing. When an emergency call is initiated, a location comprising a horizontal uncertainty and a confidence level is generated. The horizontal uncertainty is compared to an uncertainty threshold. If the horizontal uncertainty is equal to or below the uncertainty threshold, the location may be communicated to the gateway and communication between the UE and a public safety answer point (PSAP) is initiated. If the horizontal uncertainty is above the uncertainty threshold, a second location comprising a second horizontal uncertainty and a second confidence level may be generated. In aspects, the location or the second location is generated utilizing one or more of: global navigation satellite system, device-based hybrid, Wi-Fi Location provider, Network-Location provider.

What is claimed is: 
     
         1 . One or more computer-readable media having computer-executable instructions embodied thereon that, when executed, perform a method for refining user equipment (UE) location for wireless emergency location-based call routing, the method comprising:
 initiating, at the UE, an emergency call;   generating, by a location engine of the UE, a location comprising a horizontal uncertainty and a confidence level;   comparing the horizontal uncertainty to an uncertainty threshold;   based on the comparing, determining if the location can be communicated to a gateway.   
     
     
         2 . The media of  claim 1 , further comprising, determining the horizontal uncertainty is equal to or below the uncertainty threshold. 
     
     
         3 . The media of  claim 2 , further comprising communicating the location to the gateway. 
     
     
         4 . The media of  claim 3 , further comprising initiating communication between the UE and a public safety answer point (PSAP). 
     
     
         5 . The media of  claim 1 , further comprising, determining the horizontal uncertainty is above the uncertainty threshold. 
     
     
         6 . The media of  claim 5 , further comprising generating, by the location engine of the UE or a second location engine of the UE, a second location comprising a second horizontal uncertainty and a second confidence level. 
     
     
         7 . The media of  claim 6 , wherein the location engine and the second location engine utilize one or more of: global navigation satellite system, device-based hybrid, Wi-Fi Location provider, Network-Location provider to determine the location or the second location. 
     
     
         8 . A method for refining user equipment (UE) location for wireless emergency location-based call routing, the method comprising:
 initiating, at the UE, an emergency call;   generating, by a location engine of the UE, a location comprising a horizontal uncertainty and a confidence level;   comparing the horizontal uncertainty to an uncertainty threshold;   based on the comparing, determining if the location can be communicated to a gateway.   
     
     
         9 . The method of  claim 8 , further comprising, determining the horizontal uncertainty is equal to or below the uncertainty threshold. 
     
     
         10 . The method of  claim 9 , further comprising communicating the location to the gateway. 
     
     
         11 . The method of  claim 10 , further comprising initiating communication between the UE and a public safety answer point (PSAP). 
     
     
         12 . The method of  claim 8 , further comprising, determining the horizontal uncertainty is above the uncertainty threshold. 
     
     
         13 . The media of  claim 12 , further comprising generating, by the location engine of the UE or a second location engine of the UE, a second location comprising a second horizontal uncertainty and a second confidence level. 
     
     
         14 . The method of  claim 13 , wherein the location engine and the second location engine utilize one or more of: global navigation satellite system, device-based hybrid, Wi-Fi Location provider, Network-Location provider to determine the location or the second location 
     
     
         15 . A system for refining user equipment (UE) location for wireless emergency location-based call routing, the system comprising:
 a node configured to wirelessly communicate with one or more UEs; and   a UE of the one or more UEs that:
 (1) initiates, at the UE, an emergency call; 
 (2) generates, by a location engine of the UE, a location comprising a horizontal uncertainty and a confidence level; 
 (3) compares the horizontal uncertainty to an uncertainty threshold; 
 (4) based on the comparing, determines if the location can be communicated to a gateway. 
   
     
     
         16 . The system of  claim 15 , further comprising, determining the horizontal uncertainty is equal to or below the uncertainty threshold. 
     
     
         17 . The system of  claim 16 , further comprising communicating the location to the gateway. 
     
     
         18 . The system of  claim 17 , further comprising initiating communication between the UE and a public safety answer point (PSAP). 
     
     
         19 . The system of  claim 15 , further comprising, determining the horizontal uncertainty is above the uncertainty threshold. 
     
     
         20 . The system of  claim 19 , further comprising generating, by the location engine of the UE or a second location engine of the UE, a second location comprising a second horizontal uncertainty and a second confidence level, wherein the location engine and the second location engine utilize one or more of: global navigation satellite system, device-based hybrid, Wi-Fi Location provider, Network-Location provider to determine the location or the second location